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Composition dependent electrical switching behavior of As-Te-I chalcohalide glasses

Pattanayak, Pulok and Asokan, S (2008) Composition dependent electrical switching behavior of As-Te-I chalcohalide glasses. In: Solid State Communications, 148 (9-10). pp. 378-381.

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The electrical switching behavior of bulk, melt-quenched AS(45)Te(55-x)I(x) glasses has been studied as a function of composition (3 <= x <= 10). It is found that these glasses exhibit a memory to threshold type change in switching behavior around 6 atom% of iodine (x approximate to 6). The observed change in the electrical switching behavior has been understood on the basis of the sharp increase in thermal diffusivity of AS(45)Te(55-x)I(x) glasses above x = 6. It is further found that there is not much change in switching voltages (V-T) with composition/average coordination number. There is also no pronounced signature of a stiffness transition seen in the variation of V-T with composition. However, fluctuations are seen in V-T around x = 6, the composition around which a sharp thermally revering window has been observed in the previous alternating differential scanning calorimetric studies.

Item Type: Journal Article
Publication: Solid State Communications
Publisher: Elsevier.
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Disordered systems;Electronic transport;Heat conduction.
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 12 Mar 2009 09:55
Last Modified: 19 Sep 2010 04:58
URI: http://eprints.iisc.ac.in/id/eprint/17809

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